var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

var winston =require('winston');
var expressWinston =require('express-winston');

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
//执行创建表结构
var config = require('./model/index')


var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
//设置正常日志
app.use(expressWinston.logger({
    transports: [
        new (winston.transports.Console)({
            json: true,
            colorize: true
        }),
        new winston.transports.File({
            filename: 'logs/success.log'  //成功的日志记录在log/success.log
        })
    ]
}));
//路由
app.use('/', indexRouter);
app.use('/users', usersRouter);
//记录错误日志
app.use(expressWinston.errorLogger({
    transports: [
        new winston.transports.Console({
            json: true,
            colorize: true
        }),
        new winston.transports.File({
            filename: 'logs/error.log'   //失败的日志记录在log/success.log
        })
    ]
}));
// 地址匹配不到报404
app.use(function(req, res, next) {
  next(createError(404));
});


//设置跨域请求
app.all('*', function(req, res, next){
  	res.header('Access-Control-Allow-Origin', '*');
    res.header('Access-Control-Allow-Headers', 'Content-Type, Content-Length, Authorization, Accept, X-Requested-With , yourHeaderFeild');
    res.header('Access-Control-Allow-Methods', 'PUT, POST, GET, DELETE, OPTIONS');
	if(res.method=="OPTIONS"){
		res.send(200);
	}else {
		next();
	}
});
// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
